In the right panel, I can't select all file via CTRL+A
When I compare lot of files for backup, if I delete all file in right panel (I don't know about left panel), some of those files still in their directory. So I have to select all lines and delete by SHIFT+DEL in right panel some times to delete all files from there.

Suggestions:
I can't know time left to complete my backup, neither there are any informations about real time throughput.